Corrosion properties of β-Ta alloyed Ti6Al4V by double-glow plasma surface alloying technique

To improve the corrosion resistance of biomedical titanium alloys, Ta-modified layer was prepared on Ti6Al4V substrate by double-glow plasma surface alloying technique (DGPSAT) at 750 °C. The effects of alloying time of Ta coating on the microstructure, film cohesion strength, as well as the electrochemical corrosion property had been investigated. Results showed that there were mainly β-Ta phase formed at 750 °C, the crystal grew bigger without...